Home / 4,319.20-6,478.73-1,545.12

Finding the Fourth Proportional to 4,319.20, 6,478.73 and 1,545.12

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Solution

The fourth proportional to 4,319.20, 6,478.73 and 1,545.12 is: 2,317.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,319.20 : 6,478.73 = 1,545.12 : x
  2. Step 2: Convert to fraction form
    4,319.20/6,478.73 = 1,545.12/x
  3. Step 3: Cross multiply
    4,319.20x = 6,478.73 × 1,545.12
  4. Step 4: Simplify right side
    4,319.20x = 10,010,415.30
  5. Step 5: Solve for x
    x = 10,010,415.30/4,319.20
  6. Step 6: Final answer
    x = 2,317.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.